Phasar athermalization using a slab waveguide

    公开(公告)号:AU3554702A

    公开(公告)日:2002-03-04

    申请号:AU3554702

    申请日:2001-06-26

    Applicant: CORNING INC

    Abstract: A passive temperature-compensated integrated optical component having an array of adjacent waveguides, and a slab waveguide located within a groove at an intermediate section of the array. The waveguides have an index of refraction that increases with increasing temperature, and the slab waveguide has an index of refraction that decreases with increasing temperature. The slab waveguide compensates for a temperature-induced change in the refractive index of the waveguides to maintain a generally constant optical path difference between the adjacent waveguides over a temperature range.

    METHOD OF DOPING AN OPTICAL FIBER PREFORM WITH FLUORINE
    6.
    发明申请
    METHOD OF DOPING AN OPTICAL FIBER PREFORM WITH FLUORINE 审中-公开
    用荧光光学光纤预取物的方法

    公开(公告)号:WO0249977A9

    公开(公告)日:2003-04-17

    申请号:PCT/US0146274

    申请日:2001-10-31

    Applicant: CORNING INC

    Abstract: The invention relates to the manufacturing of a preform having at least one fluorine doped region. One method of the invention for producing the fluorinated preform includes heat treating a porous soot preform, the preform substantially devoid of any sintered glass layer, to a temperature of greater than about 1200 DEG C. The method further includes exposing the preform to an atmosphere comprising a fluorine containing compound, wherein the time and the temperature of said exposing step is controlled so that F comprises > about 1 wherein F is defined as Rmax/(D/k)1/2, wherein Rmax is the outer radius of the preform, D is the diffusion coefficient of the fluorine containing compound into the preform, and k is the reaction rate constant of the reaction between the fluorine and the soot, thereby controlling the radial penetration of fluorine into the preform. A second method includes depositing fluorine doped silica soot on a starting member to form a soot preform having at least one fluorine doped soot region and heating the soot preform at a rate of more than about 10 DEG C/min to a temperature of more than about 1300 DEG C. A third method includes heating a preform having at least one region of fluorine doped soot at a rate of more than about 10 DEG C/min to a temperature of more than about 1400 DEG C.

    Abstract translation: 本发明涉及具有至少一个氟掺杂区域的预制件的制造。 用于生产氟化预成型件的本发明的一种方法包括将多孔烟炱预制件(基本上没有任何烧结玻璃层的预制件)热处理至大于约1200℃的温度。该方法还包括将预成型坯暴露于包括 含氟化合物,其中控制所述曝光步骤的时间和温度使得F包含>约1,其中F定义为Rmax /(D / k)1/2,其中Rmax是预成型件的外半径, D是含氟化合物进入预成型体的扩散系数,k是氟和烟灰之间的反应的反应速率常数,从而控制氟进入预成型体的径向渗透。 第二种方法包括在起始构件上沉积氟掺杂的二氧化硅烟炱以形成具有至少一个氟掺杂烟灰区域的烟炱预制件,并以大于约10℃/分钟的速率将烟炱预制件加热到大于约 1300℃。第三种方法包括将具有氟掺杂烟灰的至少一个区域的预成型体以大于约10℃/分钟的速率加热到大于约1400℃的温度。

    PROCESS FOR DRYING POROUS GLASS PREFORMS
    8.
    发明申请
    PROCESS FOR DRYING POROUS GLASS PREFORMS 审中-公开
    用于干燥多孔玻璃预制件的方法

    公开(公告)号:WO0226646A3

    公开(公告)日:2002-10-31

    申请号:PCT/US0142408

    申请日:2001-09-27

    Applicant: CORNING INC

    CPC classification number: C03B19/1453 C03B37/01446

    Abstract: The disclosed invention relates to the use of a specific drying agent in a process for drying glass soot preforms. The drying agent includes at least one halide and at least one reducing agent. Preferably, the reducing agent includes a compound that will react with an oxygen by-product of the reaction of the halide and water, or the reaction of the halide and an impurity in the preform. The method includes disposing the soot preform in a furnace, charging the furnace with the drying agent of halide and reducing agent and supplying heat to the furnace. Suitable drying agents for use in the process disclosed include a mixture of Cl2 and CO; a mixture of Cl2, CO and CO2; and POCl3: the latter being an example where the halide and reducing agent are embodied by a single compound.

    Abstract translation: 所公开的发明涉及在干燥玻璃烟炱预制件的方法中使用特定的干燥剂。 干燥剂包括至少一种卤化物和至少一种还原剂。 优选地,还原剂包括将与卤化物和水的反应的氧副产物反应的化合物或卤化物与预型体中的杂质的反应。 该方法包括将烟灰预制件放置在炉中,向炉中加入卤化物和还原剂的干燥剂并向炉内供热。 用于所公开方法的合适的干燥剂包括Cl 2和CO的混合物; Cl2,CO和CO2的混合物; 和POCl 3:后者是卤化物和还原剂由单一化合物体现的实例。

    pressionamento radial de fuligem para o revestimento de fibra ótica

    公开(公告)号:BR112013002358A2

    公开(公告)日:2016-05-24

    申请号:BR112013002358

    申请日:2011-08-26

    Applicant: CORNING INC

    Abstract: pressionamento radial de fuligem para o revestimento de fibra ótica. um método e aparelho pra fazer uma pré-forma de fibra ótica. o aparelho tem uma parede externa e uma parede interna. a parede externa circunda a parede interna e a parede interna circunda uma cavidade interna do aparelho. uma haste de núcleo é depositada na cavidade interna depois que o material de vidro particulado, tal como uma fuligem de vidro é depositada na cavidade interna ao redor da haste de núcleo. a haste de núcleo tem pelo menos 10 por cento da fuligem de revestimento final já aplicada na mesma. uma pressão para fora radialmente é aplicada contra o material de vidro particulado para pressurizar o material de vidro particulado contra a haste de núcleo.

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